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Definition of sensor

sensor

/ˈsɛn.sɚ/
sen · sor

Plural:sensors
•
Adjective:sensory
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sensor Lexical Profile

sensor Game Scores & Validity

• noun

1

A device that detects or measures a physical property, such as light, heat, or motion, and records, indicates, or responds to it.

Example

"The motion sensor triggered the outdoor security lights as soon as the deer walked across the driveway."


2

A biological structure or sensory receptor that responds to environmental stimuli and transmits signals to the nervous system.

Example

"Biological sensors in the human skin immediately transmit changes in ambient temperature to the brain."

Synonyms
View all synonyms for sensor

Word Nuance & Usage

Often confused with the homophone 'censor', which refers to an official who examines material to suppress unacceptable content.

• Rhymes for sensor

Word Origin & Etymology

Coined in the early 20th century from the Latin root 'sensus' (feeling, perception) combined with the agent suffix '-or', originally used to describe devices that replicate the function of biological sense organs.

Cite this Entry


Wordmom. (2026). Definition of Sensor. In Wordmom Dictionary. Retrieved Oct 15, 2026, from https://wordmom.com/dictionary/sensor
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